Answer:
B
Step-by-step explanation:
A is correct because
was added on both sides, which is supported by the Additive Property of Equality
C is correct because the Quotient Property of Logarithms states that 
so
is correct
D is correct because using the fact that
it is easy to figure out that x=12
For B, there is no property supporting that statement.
Answer:
28 million college students.
Step-by-step explanation:
We can represent all college students as x. This means that all part-time college students are
. Because all part-time college students are also equal to 8.6 million, we have
. To find the number of total college students, or x, we have to multiply by 100/31 to get rid of the fraction on the other side:

The left side of the equation evaluates as
. Because we are asked to round to the nearest million, we have to round to 28 million, which is the closest.
Answer:
x=13,y=39
Step-by-step explanation:
y=3x,x+y=52
x+3x=52
4x=52
x=52/4
x=13
y=3(13)
y=39
#3
2 and three are supplementary angles .
#4.
The answer is opposite angles .
#5
Bisected angles are equal





Now
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